vs Laysan Duck

Hypoxylon petriniae compared with Anas laysanensis

Key Differences

is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank		Laysan Duck
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Sordariomycetes (Sordariomycetes)	Aves (Birds)
Order	Xylariales (Xylariales)	Anseriformes (Anseriformes)
Family	Hypoxylaceae	Anatidae
Genus	Hypoxylon	Anas
Species	Hypoxylon petriniae	Anas laysanensis

Conservation Status

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute		Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Hypoxylon petriniae is a wood-inhabiting pyrenomycete fungus producing small, cushion-shaped stromata on dead hardwood bark. It inhabits temperate forests across Europe and related regions where suitable deadwood hosts are available. This saprotrophic fungus decomposes the cellulose and lignin of dead woody tissues.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.